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Engineering Layertronics in Two-Dimensional Ferromagnetic Multiferroic Lattice.

Yibo Liu1, Yangyang Feng1, Ying Dai1

  • 1School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Shandanan Str. 27, Jinan 250100, People's Republic of China.

Nano Letters
|March 6, 2024
PubMed
Summary
This summary is machine-generated.

Researchers engineered layertronics using the layer Hall effect (LHE) in a novel ferromagnetic multiferroic lattice. This breakthrough, demonstrated in bilayer TcIrGe2S6, opens new avenues for spintronics research.

Keywords:
ferromagneticfirst-principleslayertronicstwo-dimensional multiferroic

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Area of Science:

  • Condensed matter physics
  • Spintronics
  • Materials science

Background:

  • Layertronics, based on the layer Hall effect (LHE), is an emerging field.
  • Existing LHE proposals are limited to antiferromagnetic systems.

Purpose of the Study:

  • To propose a general mechanism for engineering layertronics in two-dimensional ferromagnetic multiferroic lattices.
  • To demonstrate this mechanism in a specific material system.

Main Methods:

  • Symmetry analysis
  • Tight-binding model analysis
  • First-principles calculations

Main Results:

  • A general mechanism for LHE in ferromagnetic multiferroics was proposed.
  • Bilayer TcIrGe2S6 was identified as a material exhibiting LHE.
  • The mechanism involves coupling of Berry curvature with the layer degree of freedom due to intrinsic symmetry breakings.

Conclusions:

  • The study presents a new route for realizing layertronics in ferromagnetic multiferroics.
  • This work expands the scope of LHE beyond antiferromagnetic systems.
  • Bilayer TcIrGe2S6 serves as a promising platform for future layertronics applications.